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Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the digitalised circuits of the public switched telephone network. Work on the standard began in 1980 at Bell Labs and was formally standardized in 1988 in the CCITT "Red Book". By the time the standard was released, newer networking systems with much greater speeds were available, and ISDN saw relatively little uptake in the wider market. One estimate suggests ISDN use peaked at a worldwide total of 25 million subscribers at a time when 1.3 billion analog lines were in use. ISDN has largely been replaced with digital subscriber line (DSL) systems of much higher performance.
Digital subscriber line is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for Internet access.
Telecommunications in Australia refers to communication in Australia through electronic means, using devices such as telephone, television, radio or computer, and services such as the telephony and broadband networks. Telecommunications have always been important in Australia given the "tyranny of distance" with a dispersed population. Governments have driven telecommunication development and have a key role in its regulation.
A digital subscriber line access multiplexer is a network device, often located in telephone exchanges, that connects multiple customer digital subscriber line (DSL) interfaces to a high-speed digital communications channel using multiplexing techniques. Its cable internet (DOCSIS) counterpart is the cable modem termination system.
Internet access is a facility or service that provides connectivity for a computer, a computer network, or other network device to the Internet, and for individuals or organizations to access or use applications such as email and the World Wide Web. Internet access is offered for sale by an international hierarchy of Internet service providers (ISPs) using various networking technologies. At the retail level, many organizations, including municipal entities, also provide cost-free access to the general public.
NorthPoint Communications Group, Inc. was a competitive local exchange carrier focused on data transmission via digital subscriber lines. The company had relationships with Microsoft, Tandy Corporation, Intel, Verio, Cable & Wireless, Frontier Corporation, Concentric Network, ICG Communications, Enron, Network Plus, and Netopia. The company had investments from The Carlyle Group, Accel Partners, Benchmark, and Greylock Partners.
A leased line is a private telecommunications circuit between two or more locations provided according to a commercial contract. It is sometimes also known as a private circuit, and as a data line in the UK. Typically, leased lines are used by businesses to connect geographically distant offices.
iiNet Limited is an Australian internet service provider and telecommunications company that sells NBN plans, 4G and 5G Home Wireless Internet and services on its ULTRA Broadband Cable, FTTB and VDSL2 networks. It also sells mobile phone sim-only plans using the Vodafone network.
Telkom SA SOC Limited is a South African wireline and wireless telecommunications provider, operating in more than 38 countries across the African continent. Telkom is majority state-owned (55.3%) with the South African government owning 40.5% of Telkom, while another 14.8% is owned by another state-owned company - the Public Investment Corporation (PIC), which is closely linked to the South African government.
Whidbey Telecom is a private, independent telecommunications company operating on the South End of Whidbey Island in Washington State, the community of Point Roberts, Washington, and its affiliate Hat Island Telephone Company on Hat (Gedney) Island. Whidbey Telecom has been locally owned and operated since it started business in 1908.
Internet in Australia first became available on a permanent basis to universities in Australia in May 1989, via AARNet. Pegasus Networks was Australia's first public Internet provider in June 1989. The first commercial dial-up Internet Service Provider (ISP) appeared in capital cities soon after, and by the mid-1990s, almost the entire country had a range of choices of dial-up ISPs. Today, Internet access is available through a range of technologies, i.e. hybrid fibre coaxial cable, digital subscriber line (DSL), Integrated Services Digital Network (ISDN) and satellite Internet. In July 2009, the federal government, in partnership with the industrial sector, began rolling out a nationwide fibre-to-the-premises (FTTP) and improved fixed wireless and satellite access through the National Broadband Network. Subsequently, the roll out was downgraded to a Multi-Technology Mix on the promise of it being less expensive and with earlier completion. In October 2020, the federal government announced an upgrade by 2023 of NBN fibre-to-the-node (FTTN) services to FTTP for 2 million households, at a cost of A$3.5 billion.
Internet access is widely available in New Zealand, with 94% of New Zealanders having access to the internet as of January 2021. It first became accessible to university students in the country in 1989. As of June 2018, there are 1,867,000 broadband connections, of which 1,524,000 are residential and 361,000 are business or government.
Internet in Brazil was launched in 1988, becoming commercialy available in May 1995. As of 2023, Brazil ranked fifth in the world with 181.8 million internet users. The country had an internet penetration rate of 86.6% as of January 2024. In March 2024, Brazil ranked 27th in the Ookla Broadband Ranking, with a median fixed broadband speed of 158.57 Mbit/s. Also, as per December 2021, Brazil had 41,4 million fixed broadband accesses, most of them FTTH. However, as per 2020, most Brazilians access the Internet through a mobile connection, with more than 200 million mobile internet access.
In an international context Denmark is viewed as a somewhat peculiar country when it comes to internet access. The former state owned telephone company TDC owns the entire last mile infrastructure in terms of copper telephone lines and the vast majority of the coaxial cable infrastructure as well. Even though the Danish telecommunications infrastructure is very heavily dominated by one company, Danish internet customers still enjoy fair prices and a wide availability of different next generation access internet connections in comparison with most other EU countries. Furthermore, TDCs de facto monopoly on last mile infrastructure has come under attack. In the last decade regional power companies have formed national business alliances aimed at implementing FTTH for private and business end users.
The prevalent means of connecting to the Internet in Germany is DSL, introduced by Deutsche Telekom in 1999. Other technologies such as Cable, FTTH and FTTB (fiber), Satellite, UMTS/HSDPA (mobile) and LTE are available as alternatives.
The Internet in Serbia is well developed. The Internet country code top-level domain (ccTLD) for Serbia is .rs and .срб. (Cyrillic)
High-speed voice and data link (HVDL) is a high speed voice and data provisioning method that allows telcos and ISPs to provide up to three voice channels and data on a copper pair over extremely long local loops.
Hart v. Comcast was a suit filed by Jon Hart, a citizen of California against Comcast in Alameda County. Comcast is a provider of internet access and services. The suit alleged that Comcast was illegally interfering with certain types of internet traffic, such as BitTorrent. The suit alleged that Comcast is guilty of false advertising for advertising high speed services yet deliberately using technology to interfere with access speeds. The suit also claimed Comcast's actions violated established Federal Communications Commission policies on Net Neutrality. The case has since been settled out of court.
In Romania, there are 18.8 million connections to the Internet. Romania's country code is .ro. The .eu domain is also used, as it is shared with other European Union member states. There were over 600 000 domains registered under .ro at the end of 2012.
Internet in India began in 1986 and was initially available only to the educational and research community. General public access to the internet in India began on 15 August 1995. By 2023, India had more than 900 million Internet users. It is reported that in 2022 an average mobile Internet consumption in India was 19.5 GB per month and the mobile data usage per month rose from 4.5 exabytes in 2018 to 14.4 exabytes in 2022.
References
- ↑ http://www.internetnews.com/xSP/article.php/863941 Rhythms NetConnections to End Service
- ↑ "Archived copy". Archived from the original on 2009-04-26. Retrieved 2012-03-05.
{{cite web}}: CS1 maint: archived copy as title (link) $17.5M Settlement In Suit V. Rhythms Execs Gets OK - ↑ McLean & Elkind, The Smartest Guys in the Room p191